Beating-engine.



J. A. DE GEW 6; R. J. MARX;

HEATING BNGNE.

APPLICATION FILED MAR.14,1912.,

` D'BV. Y Patented `July 8, 1913.

, :trom the mixer,y

' stro 'ing paper pulp,

iiivi'rao sauras riiruu'r euries'.

JUDSON A. :DE GEW AND ROBERT J'. MARX, OF MONTREAL, QUEBEC, CAND; SAIB 4 DE GEW ASIGNOR '10 SAID MARX.

esamina-riverain Specillcaticn 'ot Letters Patent. iippiieatum mea March ii, iaia. serial ne. taeit.

" Patented July 8, 1913.

. ollwhom it may concern.: Beit known that We, and ROBERT J. Musix, both of the city of Jonson A. Die Ciiw Montreal, inl the Province of Quebec and Dominion of Canada, have invented new and useful improvements in Beating-En gines, of which the following is a full, clear, and exact description.

This invention relates to aprocess of inakand particularly to the method of treating pulp stock in the manufacture of newspaper.

` rll`he main object oit the invention is to produce a paper of increased strength and. more uniform' qualit-y, and which Will more readl retain the various fillers used in the manu acture of paper stock.

I In the ordinary method ofi-preparing pulp for the manufacture of news print,

ground Wood and sultefiber are mixed together in certain proportions in a suitable mixing device. TheV quality of the paper depends upon the condition of the stock` as it comes and our invention is designed to so improve the process of treatment during thei'nixin operation as to pro duce a paper that Wil have a more even tearing strain, that will be considerably er and .that will be greatly improved in finish and quality.

The .invention consists essentially in treating the stock While in the mixing trough to alternate brushing sind cutting actions by two sets of apparatus, -taneously and splitting them into which operate simul through which the 'stock passes. 0rdinarily, the stock is subjected to the cutting. action. of the beater roll or rolls as it passes, through the trough.

ln our ptocess,'the ordinary steel or metal roll is arranged in `one part oi? the trough, and a stone roll or crusher is arranged either in front ott" or behind the steel roll. The stoclris passed throhgh both sets of apparatus alternately, the stones serving theipurpose of brushing the liber bundles apart or fibrillae. The cutting action ci the steel beater roll on the other hand makes the stock suciently free to allori.T for the hioh speed at which this kind of paper is naad A I ln the drawings which illustrate one form ot apparatus Vused in connection with our process :-Fi re l is a sectional elevation ot a double eatertrough on the litio a-'-.a oit Fig. 2.- Fig. 2 is a plan View of a double passing to chine, so that the tensile strength o the great in'onc dr 11n beater 4trougl'i fitted with a stone and a steel roll.

ln ther drawings, 3 designates a suitable trough having outer vertical Walls l and iiiner Walls 5. 'The 'ioor of the trough 6 between the inner and outer Walls is inclined between the sets of rolls in such a manner that the stock pa es more or less freely by. gravity trom one set of rolls to the other. On one side of the" apparatus Withiii 4the tudinal corrugations on its surface, which operate as knives or beaters for the paper stock. steel bed plate 8, the stock being adapted to pass between the steel roll and bed plate. This roll is mounted on an axle 9, which is provided with a pulley 10 and is driven by belts or in any other suitable manner. On' the opposite side of the trough is provided a stonetroll 11 of basalt lava. This roll is usuallyr built of a number of segments 12 built into a suitable core. This roll copcrates with a bed plate 13 of stone, the surfaces of the segments and bed plates being corrugated in herringbone order as shown. This roll is mounted on a shaft llt provided with a driving pulley 15. It will be seen that the licor of the trough is inclined down# wnrdly'froin the stone roll, to a point a short distance in front ufgthe steel roll, Where there is an upwardiiiiclination 'as indicated at 16. From the steel roll the 'licor is again This steelroll coperates with thetrough is located a steel roll 7 having longiinclined downwardly toward the Stone roll,

as indicated at l?, so that the Stoch will flow more or less freely between the rolls. The steel knives cut the fibers to the desired ei:- tent, While the action of the basalt lava stone rolls consists iii drawing or brushin the y fibers out into long and line filaments. .bEach the stock moving under the influence oftluei:l devices and under the cutting api;V the fibers are the more iiely sepa-` brushing patatas,

rated and are more uniformly distributed iii the wire of the paper makin inapaper is approximately as '95 roll is adjustable independently of the other, f

'lios rection as in another. This is a great advantage in making this particular Vquality of paper; By separating the individual fibers, Athe stock becomes more hydroscopic and more readily retains the various fillers that are commonly used. In short, the paper is greatly increased both in strength and in quality. I I

vHaving thus described our invention, what we claim is 1 l 1. In a beating engine, a receptacle having a bottornoute r andinner walls spaced apart to provide a ,raceway, a brushing and a beater roll arranged in the raoeway, and on opposite sides of the inner wall', and means fofl driving each roll independently of the ot er. l

2. In ab'eating engine, a receptacle having bottom, outer and inner Walls spaced apart to provide a raceway anda mid-feather, the cross sect )n of the raceway being less at theY end of the mid-feather and widening as it approaches the roll, a. brushing and a beater roll arranged in the raceway,` and on opposite sides of the mid-feather, and means for driving each roll independently of the other.

In Witness whereof we have hereunto set our hands in the presence 'of two witnesses.

JUDsoN lynn GEW.

i l ROBERT J. MARX.

I'Vitnesses; Y

STUART R. W. ALLEN, G. M. MORELAND. 

